Kitchen sponges are a staple in almost every household. However,\nthese cleaning tools have been identified as a source of microplastic\npollution that is often overlooked. A recent study led by researchers at\nthe University of Bonn, Germany, tested the amount of small plastic\nparticles released from sponges during daily dishwashing and their\nsubsequent environmental impact.<\/p>\n
The research findings indicate that kitchen sponges do indeed release\nmeasurable amounts of microplastics over time as they erode during use.\nNevertheless, researchers found that the greatest environmental burden\nfrom manual dishwashing activities is not these plastic particles, but\nrather water consumption.<\/p>\n
To gather accurate data, the research team combined laboratory\ntesting with citizen science methods. Several households in Germany and\nNorth America voluntarily used one of three types of sponges for their\ndishwashing routines while documenting their usage. Researchers weighed\neach sponge before and after use to determine the amount of material\nlost. They also conducted controlled laboratory experiments using an\nautomated testing system called \u201cSpongeBot\u201d to simulate the mechanical\npressure experienced by sponges during dishwashing.<\/p>\n
The study found that every sponge tested lost material during use.\nDepending on the type of sponge, annual emissions ranged from 0.68 grams\nto 4.21 grams per person. Sponges with lower plastic content released\nsignificantly fewer particles than those with high plastic content.<\/p>\n
Although the amount of microplastics released by a single sponge\nappears small, the figure becomes massive when accumulated on a national\nscale. Researchers estimate that if a specific type of sponge were used\nin every household in Germany, annual emissions could reach 355 tonnes\nof microplastics. Although wastewater treatment plants are capable of\ncapturing most of these particles, several tonnes of microplastics are\nestimated to escape every year, contaminating rivers, lakes, oceans, and\nsoil.<\/p>\n
Despite this, microplastic emissions are not the primary driver of\necosystem damage in this study. A life cycle assessment showed that\napproximately 85% to 97% of the total environmental impact of manual\ndishwashing actually stems from water consumption. Compared to water\nusage, microplastic emissions contribute a much smaller portion to the\noverall ecosystem damage.<\/p>\n
Through these findings, researchers shared practical steps for\nconsumers to reduce their environmental footprint when washing dishes,\nnoting that environmental success in the household is measured not only\nby the type of sponge chosen but also by how wisely we manage water flow\nat the kitchen sink.<\/p>", "url": "https:\/\/jawawa.id\/newsitem\/frequently-used-kitchen-sponges-found-to-be-a-source-of-microplastic-pollution-in-homes-1780877118", "image": "" }, "sponsor": "Okusi Associates", "sponsor_url": "https:\/\/okusiassociates.com" }